CM2350/CM2450

Corroded or heat-damaged ECM connectors on Cummins ISX15 engines with CM2350 or CM2450 electronics are a frequent source of diagnostic trouble codes, sensor faults, and intermittent communication failures. Replacing the full engine-to-cab harness is costly and often unnecessary when the damage is limited to a single connector.

Kustom Truck Parts offers CM2350/CM2450 Cummins engine harness repair kits that target the specific connection point causing the issue. Each Cummins connector repair kit includes genuine OEM plugs, pre-crimped 18" GXL copper wires, J1939 CAN bus cable, J1587 twisted pair datalink, and cavity plugs for unused positions. Replace the ECM plug on the engine-to-cab harness. Replace only the damaged section rather than the entire harness.

Built for Kenworth, Peterbilt, Freightliner, and Western Star applications, these kits restore reliable ECM communication without a full harness teardown. Browse below by connector type, or contact our team for serial number verification.